Paper/nms-patches/EntityHuman.patch

--- a/net/minecraft/server/EntityHuman.java
+++ b/net/minecraft/server/EntityHuman.java
@@ -8,13 +8,27 @@
 import java.util.List;
 import java.util.UUID;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.entity.CraftHumanEntity;
+import org.bukkit.craftbukkit.entity.CraftItem;
+import org.bukkit.craftbukkit.inventory.CraftItemStack;
+import org.bukkit.entity.Player;
+import org.bukkit.event.entity.EntityCombustByEntityEvent;
+import org.bukkit.event.player.PlayerBedEnterEvent;
+import org.bukkit.event.player.PlayerBedLeaveEvent;
+import org.bukkit.event.player.PlayerDropItemEvent;
+import org.bukkit.event.player.PlayerItemConsumeEvent;
+import org.bukkit.event.player.PlayerVelocityEvent;
+import org.bukkit.util.Vector;
+// CraftBukkit end
+
 public abstract class EntityHuman extends EntityLiving {
 
     public PlayerInventory inventory = new PlayerInventory(this);
     private InventoryEnderChest enderChest = new InventoryEnderChest();
     public Container defaultContainer;
     public Container activeContainer;
-    protected FoodMetaData foodData = new FoodMetaData();
+    protected FoodMetaData foodData = new FoodMetaData(this); // CraftBukkit - add "this" to constructor
     protected int bm;
     public float bn;
     public float bo;
@@ -25,15 +39,16 @@
     public double bt;
     public double bu;
     public double bv;
-    protected boolean sleeping;
+    public boolean sleeping; // CraftBukkit - public
     public BlockPosition bx;
-    private int sleepTicks;
+    public int sleepTicks; // CraftBukkit - public
     public float by;
     public float bz;
     private BlockPosition c;
     private boolean d;
     private BlockPosition e;
     public PlayerAbilities abilities = new PlayerAbilities();
+    public int oldLevel = -1; // CraftBukkit - add field
     public int expLevel;
     public int expTotal;
     public float exp;
@@ -47,6 +62,16 @@
     private boolean bI = false;
     public EntityFishingHook hookedFish;
 
+    // CraftBukkit start
+    public boolean fauxSleeping;
+    public String spawnWorld = "";
+
+    @Override
+    public CraftHumanEntity getBukkitEntity() {
+        return (CraftHumanEntity) super.getBukkitEntity();
+    }
+    // CraftBukkit end
+
     public EntityHuman(World world, GameProfile gameprofile) {
         super(world);
         this.uniqueID = a(gameprofile);
@@ -265,6 +290,32 @@
         if (this.g != null) {
             this.b(this.g, 16);
             int i = this.g.count;
+
+            // CraftBukkit start - fire PlayerItemConsumeEvent
+            org.bukkit.inventory.ItemStack craftItem = CraftItemStack.asBukkitCopy(this.g);
+            PlayerItemConsumeEvent event = new PlayerItemConsumeEvent((Player) this.getBukkitEntity(), craftItem);
+            world.getServer().getPluginManager().callEvent(event);
+
+            if (event.isCancelled()) {
+                // Update client
+                if (this instanceof EntityPlayer) {
+                    ((EntityPlayer) this).playerConnection.sendPacket(new PacketPlayOutSetSlot((byte) 0, activeContainer.getSlot((IInventory) this.inventory, this.inventory.itemInHandIndex).index, this.g));
+                }
+                return;
+            }
+
+            // Plugin modified the item, process it but don't remove it
+            if (!craftItem.equals(event.getItem())) {
+                CraftItemStack.asNMSCopy(event.getItem()).b(this.world, this);
+
+                // Update client
+                if (this instanceof EntityPlayer) {
+                    ((EntityPlayer) this).playerConnection.sendPacket(new PacketPlayOutSetSlot((byte) 0, activeContainer.getSlot((IInventory) this.inventory, this.inventory.itemInHandIndex).index, this.g));
+                }
+                return;
+            }
+            // CraftBukkit end
+            
             ItemStack itemstack = this.g.b(this.world, this);
 
             if (itemstack != this.g || itemstack != null && itemstack.count != i) {
@@ -283,7 +334,7 @@
         return this.getHealth() <= 0.0F || this.isSleeping();
     }
 
-    protected void closeInventory() {
+    public void closeInventory() { // CraftBukkit - public
         this.activeContainer = this.defaultContainer;
     }
 
@@ -324,7 +375,8 @@
 
         if (this.world.getDifficulty() == EnumDifficulty.PEACEFUL && this.world.getGameRules().getBoolean("naturalRegeneration")) {
             if (this.getHealth() < this.getMaxHealth() && this.ticksLived % 20 == 0) {
-                this.heal(1.0F);
+                // CraftBukkit - added regain reason of "REGEN" for filtering purposes.
+                this.heal(1.0F, org.bukkit.event.entity.EntityRegainHealthEvent.RegainReason.REGEN);
             }
 
             if (this.foodData.c() && this.ticksLived % 10 == 0) {
@@ -348,7 +400,7 @@
 
         this.k((float) attributeinstance.getValue());
         float f = MathHelper.sqrt(this.motX * this.motX + this.motZ * this.motZ);
-        float f1 = (float) (Math.atan(-this.motY * 0.20000000298023224D) * 15.0D);
+        float f1 = (float) ( org.bukkit.craftbukkit.TrigMath.atan(-this.motY * 0.20000000298023224D) * 15.0D); // CraftBukkit
 
         if (f > 0.1F) {
             f = 0.1F;
@@ -438,11 +490,13 @@
 
     public void b(Entity entity, int i) {
         this.addScore(i);
-        Collection collection = this.getScoreboard().getObjectivesForCriteria(IScoreboardCriteria.f);
+        // CraftBukkit - Get our scores instead
+        Collection<ScoreboardScore> collection = this.world.getServer().getScoreboardManager().getScoreboardScores(IScoreboardCriteria.f, this.getName(), new java.util.ArrayList<ScoreboardScore>());
 
         if (entity instanceof EntityHuman) {
             this.b(StatisticList.B);
-            collection.addAll(this.getScoreboard().getObjectivesForCriteria(IScoreboardCriteria.e));
+            // CraftBukkit - Get our scores instead
+            this.world.getServer().getScoreboardManager().getScoreboardScores(IScoreboardCriteria.e, this.getName(), collection);
             collection.addAll(this.e(entity));
         } else {
             this.b(StatisticList.z);
@@ -451,15 +505,14 @@
         Iterator iterator = collection.iterator();
 
         while (iterator.hasNext()) {
-            ScoreboardObjective scoreboardobjective = (ScoreboardObjective) iterator.next();
-            ScoreboardScore scoreboardscore = this.getScoreboard().getPlayerScoreForObjective(this.getName(), scoreboardobjective);
+            ScoreboardScore scoreboardscore = (ScoreboardScore) iterator.next(); // CraftBukkit - Use our scores instead
 
             scoreboardscore.incrementScore();
         }
 
     }
 
-    private Collection<ScoreboardObjective> e(Entity entity) {
+    private Collection e(Entity entity) { // CraftBukkit - TODO: Check me?
         ScoreboardTeam scoreboardteam = this.getScoreboard().getPlayerTeam(this.getName());
 
         if (scoreboardteam != null) {
@@ -491,6 +544,7 @@
     }
 
     public EntityItem a(boolean flag) {
+        // Called only when dropped by Q or CTRL-Q
         return this.a(this.inventory.splitStack(this.inventory.itemInHandIndex, flag && this.inventory.getItemInHand() != null ? this.inventory.getItemInHand().count : 1), false, true);
     }
 
@@ -533,6 +587,30 @@
                 entityitem.motZ += Math.sin((double) f1) * (double) f;
             }
 
+            // CraftBukkit start - fire PlayerDropItemEvent
+            Player player = (Player) this.getBukkitEntity();
+            CraftItem drop = new CraftItem(this.world.getServer(), entityitem);
+
+            PlayerDropItemEvent event = new PlayerDropItemEvent(player, drop);
+            this.world.getServer().getPluginManager().callEvent(event);
+
+            if (event.isCancelled()) {
+                org.bukkit.inventory.ItemStack cur = player.getInventory().getItemInHand();
+                if (flag1 && (cur == null || cur.getAmount() == 0)) {
+                    // The complete stack was dropped
+                    player.getInventory().setItemInHand(drop.getItemStack());
+                } else if (flag1 && cur.isSimilar(drop.getItemStack()) && drop.getItemStack().getAmount() == 1) {
+                    // Only one item is dropped
+                    cur.setAmount(cur.getAmount() + 1);
+                    player.getInventory().setItemInHand(cur);
+                } else {
+                    // Fallback
+                    player.getInventory().addItem(drop.getItemStack());
+                }
+                return null;
+            }
+            // CraftBukkit end
+
             this.a(entityitem);
             if (flag1) {
                 this.b(StatisticList.v);
@@ -624,6 +702,13 @@
             this.a(true, true, false);
         }
 
+        // CraftBukkit start
+        this.spawnWorld = nbttagcompound.getString("SpawnWorld");
+        if ("".equals(spawnWorld)) {
+            this.spawnWorld = this.world.getServer().getWorlds().get(0).getName();
+        }
+        // CraftBukkit end
+
         if (nbttagcompound.hasKeyOfType("SpawnX", 99) && nbttagcompound.hasKeyOfType("SpawnY", 99) && nbttagcompound.hasKeyOfType("SpawnZ", 99)) {
             this.c = new BlockPosition(nbttagcompound.getInt("SpawnX"), nbttagcompound.getInt("SpawnY"), nbttagcompound.getInt("SpawnZ"));
             this.d = nbttagcompound.getBoolean("SpawnForced");
@@ -665,6 +750,7 @@
         if (itemstack != null && itemstack.getItem() != null) {
             nbttagcompound.set("SelectedItem", itemstack.save(new NBTTagCompound()));
         }
+        nbttagcompound.setString("SpawnWorld", spawnWorld); // CraftBukkit - fixes bed spawns for multiworld worlds
 
     }
 
@@ -684,7 +770,7 @@
 
                 if (damagesource.r()) {
                     if (this.world.getDifficulty() == EnumDifficulty.PEACEFUL) {
-                        f = 0.0F;
+                        return false; // CraftBukkit - f = 0.0f -> return false
                     }
 
                     if (this.world.getDifficulty() == EnumDifficulty.EASY) {
@@ -696,7 +782,7 @@
                     }
                 }
 
-                if (f == 0.0F) {
+                if (false && f == 0.0F) { // CraftBukkit - Don't filter out 0 damage
                     return false;
                 } else {
                     Entity entity = damagesource.getEntity();
@@ -712,10 +798,29 @@
     }
 
     public boolean a(EntityHuman entityhuman) {
-        ScoreboardTeamBase scoreboardteambase = this.getScoreboardTeam();
-        ScoreboardTeamBase scoreboardteambase1 = entityhuman.getScoreboardTeam();
+        // CraftBukkit start - Change to check OTHER player's scoreboard team according to API
+        // To summarize this method's logic, it's "Can parameter hurt this"
+        org.bukkit.scoreboard.Team team;
+        if (entityhuman instanceof EntityPlayer) {
+            EntityPlayer thatPlayer = (EntityPlayer) entityhuman;
+            team = thatPlayer.getBukkitEntity().getScoreboard().getPlayerTeam(thatPlayer.getBukkitEntity());
+            if (team == null || team.allowFriendlyFire()) {
+                return true;
+            }
+        } else {
+            // This should never be called, but is implemented anyway
+            org.bukkit.OfflinePlayer thisPlayer = entityhuman.world.getServer().getOfflinePlayer(entityhuman.getName());
+            team = entityhuman.world.getServer().getScoreboardManager().getMainScoreboard().getPlayerTeam(thisPlayer);
+            if (team == null || team.allowFriendlyFire()) {
+                return true;
+            }
+        }
 
-        return scoreboardteambase == null ? true : (!scoreboardteambase.isAlly(scoreboardteambase1) ? true : scoreboardteambase.allowFriendlyFire());
+        if (this instanceof EntityPlayer) {
+            return !team.hasPlayer(((EntityPlayer) this).getBukkitEntity());
+        }
+        return !team.hasPlayer(this.world.getServer().getOfflinePlayer(this.getName()));
+        // CraftBukkit end
     }
 
     protected void damageArmor(float f) {
@@ -742,7 +847,12 @@
         return (float) i / (float) this.inventory.armor.length;
     }
 
-    protected void d(DamageSource damagesource, float f) {
+    // CraftBukkit start
+    protected boolean d(DamageSource damagesource, float f) { // void -> boolean
+        if (true) {
+            return super.d(damagesource, f);
+        }
+        // CraftBukkit end
         if (!this.isInvulnerable(damagesource)) {
             if (!damagesource.ignoresArmor() && this.isBlocking() && f > 0.0F) {
                 f = (1.0F + f) * 0.5F;
@@ -766,6 +876,7 @@
 
             }
         }
+        return false; // CraftBukkit
     }
 
     public void openSign(TileEntitySign tileentitysign) {}
@@ -800,7 +911,8 @@
                     }
 
                     if (itemstack.a(this, (EntityLiving) entity)) {
-                        if (itemstack.count <= 0 && !this.abilities.canInstantlyBuild) {
+                        // CraftBukkit - bypass infinite items; <= 0 -> == 0
+                        if (itemstack.count == 0 && !this.abilities.canInstantlyBuild) {
                             this.ca();
                         }
 
@@ -866,8 +978,15 @@
                     int j = EnchantmentManager.getFireAspectEnchantmentLevel(this);
 
                     if (entity instanceof EntityLiving && j > 0 && !entity.isBurning()) {
-                        flag1 = true;
-                        entity.setOnFire(1);
+                        // CraftBukkit start - Call a combust event when somebody hits with a fire enchanted item
+                        EntityCombustByEntityEvent combustEvent = new EntityCombustByEntityEvent(this.getBukkitEntity(), entity.getBukkitEntity(), 1);
+                        org.bukkit.Bukkit.getPluginManager().callEvent(combustEvent);
+
+                        if (!combustEvent.isCancelled()) {
+                            flag1 = true;
+                            entity.setOnFire(combustEvent.getDuration());
+                        }
+                        // CraftBukkit end
                     }
 
                     double d0 = entity.motX;
@@ -884,11 +1003,28 @@
                         }
 
                         if (entity instanceof EntityPlayer && entity.velocityChanged) {
-                            ((EntityPlayer) entity).playerConnection.sendPacket(new PacketPlayOutEntityVelocity(entity));
-                            entity.velocityChanged = false;
-                            entity.motX = d0;
-                            entity.motY = d1;
-                            entity.motZ = d2;
+                            // CraftBukkit start - Add Velocity Event
+                            boolean cancelled = false;
+                            Player player = (Player) entity.getBukkitEntity();
+                            org.bukkit.util.Vector velocity = new Vector( d0, d1, d2 );
+
+                            PlayerVelocityEvent event = new PlayerVelocityEvent(player, velocity.clone());
+                            world.getServer().getPluginManager().callEvent(event);
+
+                            if (event.isCancelled()) {
+                                cancelled = true;
+                            } else if (!velocity.equals(event.getVelocity())) {
+                                player.setVelocity(velocity);
+                            }
+
+                            if (!cancelled) {
+                                ( (EntityPlayer) entity ).playerConnection.sendPacket( new PacketPlayOutEntityVelocity( entity ) );
+                                entity.velocityChanged = false;
+                                entity.motX = d0;
+                                entity.motY = d1;
+                                entity.motZ = d2;
+                            }
+                            // CraftBukkit end
                         }
 
                         if (flag) {
@@ -922,7 +1058,8 @@
 
                         if (itemstack != null && object instanceof EntityLiving) {
                             itemstack.a((EntityLiving) object, this);
-                            if (itemstack.count <= 0) {
+                            // CraftBukkit - bypass infinite items; <= 0 -> == 0
+                            if (itemstack.count == 0) {
                                 this.ca();
                             }
                         }
@@ -930,7 +1067,14 @@
                         if (entity instanceof EntityLiving) {
                             this.a(StatisticList.w, Math.round(f * 10.0F));
                             if (j > 0) {
-                                entity.setOnFire(j * 4);
+                                // CraftBukkit start - Call a combust event when somebody hits with a fire enchanted item
+                                EntityCombustByEntityEvent combustEvent = new EntityCombustByEntityEvent(this.getBukkitEntity(), entity.getBukkitEntity(), j * 4);
+                                org.bukkit.Bukkit.getPluginManager().callEvent(combustEvent);
+
+                                if (!combustEvent.isCancelled()) {
+                                    entity.setOnFire(combustEvent.getDuration());
+                                }
+                                // CraftBukkit end
                             }
                         }
 
@@ -996,6 +1140,20 @@
             this.mount((Entity) null);
         }
 
+        // CraftBukkit start - fire PlayerBedEnterEvent
+        if (this.getBukkitEntity() instanceof Player) {
+            Player player = (Player) this.getBukkitEntity();
+            org.bukkit.block.Block bed = this.world.getWorld().getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ());
+
+            PlayerBedEnterEvent event = new PlayerBedEnterEvent(player, bed);
+            this.world.getServer().getPluginManager().callEvent(event);
+
+            if (event.isCancelled()) {
+                return EnumBedResult.OTHER_PROBLEM;
+            }
+        }
+        // CraftBukkit end
+
         this.setSize(0.2F, 0.2F);
         if (this.world.isLoaded(blockposition)) {
             EnumDirection enumdirection = (EnumDirection) this.world.getType(blockposition).get(BlockDirectional.FACING);
@@ -1078,6 +1236,23 @@
             this.world.everyoneSleeping();
         }
 
+        // CraftBukkit start - fire PlayerBedLeaveEvent
+        if (this.getBukkitEntity() instanceof Player) {
+            Player player = (Player) this.getBukkitEntity();
+
+            org.bukkit.block.Block bed;
+            BlockPosition blockposition = this.bx;
+            if (blockposition != null) {
+                bed = this.world.getWorld().getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ());
+            } else {
+                bed = this.world.getWorld().getBlockAt(player.getLocation());
+            }
+
+            PlayerBedLeaveEvent event = new PlayerBedLeaveEvent(player, bed);
+            this.world.getServer().getPluginManager().callEvent(event);
+        }
+        // CraftBukkit end
+
         this.sleepTicks = flag ? 0 : 100;
         if (flag2) {
             this.setRespawnPosition(this.bx, false);
@@ -1090,6 +1265,7 @@
     }
 
     public static BlockPosition getBed(World world, BlockPosition blockposition, boolean flag) {
+        ((ChunkProviderServer) world.chunkProvider).getChunkAt(blockposition.getX() >> 4, blockposition.getZ() >> 4); // CraftBukkit
         Block block = world.getType(blockposition).getBlock();
 
         if (block != Blocks.BED) {
@@ -1128,9 +1304,11 @@
         if (blockposition != null) {
             this.c = blockposition;
             this.d = flag;
+            this.spawnWorld = this.world.worldData.getName(); // CraftBukkit
         } else {
             this.c = null;
             this.d = false;
+            this.spawnWorld = ""; // CraftBukkit
         }
 
     }
@@ -1480,6 +1658,7 @@
     }
 
     public IChatBaseComponent getScoreboardDisplayName() {
+        // CraftBukkit - todo: fun
         ChatComponentText chatcomponenttext = new ChatComponentText(ScoreboardTeam.getPlayerDisplayName(this.getScoreboardTeam(), this.getName()));
 
         chatcomponenttext.getChatModifier().setChatClickable(new ChatClickable(ChatClickable.EnumClickAction.SUGGEST_COMMAND, "/msg " + this.getName() + " "));